void main() {
	int km; 
	double duree; 
	double tarifEss; 
	double tarifDie; 
	km = readInt( "distance en km : " ); 
	duree = readDouble( "duree en jours: " ); 
	tarifEss = 15*duree + 0.85*km;
	tarifDie = 16*duree + 0.66*km;
	println( "le tarif essence vaut " + tarifEss + " euros" ); 
	println( "le tarif diesel vaut " + tarifDie + " euros" ); 
}